package com.cht.commonUtil.withdraw;

import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.cht.commonUtil.webInit.SP;
import com.cht.commonUtil.widgets.Widgets;
import com.google.gson.Gson;

public class QueryHostINsquad4mail extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doPost(request,response);
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

		request.setCharacterEncoding( SP.UIcodeSet );
		response.setCharacterEncoding( SP.UIcodeSet );
		response.setContentType("application/json");
		
		Connection conn = null;
		PreparedStatement ps = null;
		ResultSet rs = null;
		
		String sql = "SELECT DISTINCT ip FROM mpsquadhosts WHERE subsysId=? AND envId=?";
		String subsysId = request.getParameter("subsysId");
		String envId = request.getParameter("envId");
		
		List<String> ips = new ArrayList<String>();
		
		try {
			conn = Widgets.getConn();
			ps = conn.prepareStatement(sql);
			ps.setString(1, subsysId);
			ps.setString(2, envId);
			rs = ps.executeQuery();
			while( rs.next() ) {
				ips.add( rs.getString("ip") );
			}
			
		} catch (Exception e) {
			Widgets.errLog(e);
		} finally {
			try {
				if (rs != null) {rs.close();}
				if (ps != null) {ps.close();}
				if (conn != null) {conn.close();}
			} catch (SQLException e) { e.printStackTrace(); }
		}
		
		response.getWriter().write(new Gson().toJson( ips ));
	}

}
